B). I need assistance solving this with excel

A car dealer is evaluating the inventory of used cars that he has had over the previous ten years and in particular, is interested in what the typical age of the cars is that sell the fastest. He defines "fastest" as within 10 days. For a sample of 54 cars that sold within 10 days the summary statistics are given below. Test Mean Hypothesized Value Actual Estimate Std Dev t Test Test Statistic Prob > Itl 0.5802 Prob > t Prob